The main function of the kidneys is to:
a. retrieve vital nutrients from urine and send them back to the liver for processing.
b. remove carbon dioxide from the blood and excrete it in urine
c. remove everyday wastes and water from the body.
d. store extra glycogen for use in emergencies by the body.
e. remove toxins from urine.
c
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Jim, a 21-year-old, medium-frame 6’2” senior weighing in at 205 lbs is a very active varsity wrestler majoring in psychology. He is participating in a “Hydration Study” that includes the collection of the following data: body composition analysis utilizing the Bod Pod®, food/beverage intake via dietary assessment questionnaire, urine sample, and analysis of saliva. The following data
have been provided to assist in answering the questions. Bod Pod® Results: 59% body water 86.7% lean mass 13.3% fat mass Reference Values for Bod Pod®: Risky (high body fat) = men: >30%; women: >40% Excess fat = men: 21%-30%; women: 31%-40% Moderately lean = men: 13%-20%; women: 23%-30% Lean = men: 9%-12%; women: 19%-22% Ultra lean = men: 5%-8%; women: 15%-18% Risky (low body fat) = men: <5%; women: <15% 24-Hour Recall: 3540 kcalories 177 grams protein 118 grams fat Males: EER = 662 - [9.53 x Age (y)] + PA x [(15.91 x weight in kg) + (539.6 x height in m)] PA Values: Sedentary = 1.0, Low Active = 1.11, Active = 1.25, Very Active = 1.48 What was the total percentage of kcalories from carbohydrates in Jim’s diet based on his 24-hour recall? a. 40 b. 45 c. 50 d. 55
Jade is concerned about her risk of Kashin-Beck disease. To help reduce her risk of this condition, Jade should ________.
A. consume more selenium-rich foods B. increase her sun exposure C. avoid foods such as Brazil nuts and tuna fish D. reduce her physical activity level
In boys, the adolescent growth spurt peaks at:
a. 10. b. 11. c. 12 d. 13. e. 14.
Which of the following physiological changes could increase distribution of a medication throughout the body?
a. Vasoconstriction b. Body temperature increase c. Hypoalbuminemia d. Increased percent body fat